Police were seen near the entrance Sports Direct (Credit: Google)
Officers received reports that a man had been spotted holding a “firearm” in Weston Avenue at around 2.45pm.
A “bang” sound was heard in the area and two men were spotted fleeing the scene.
No one is believed to have been injured during the incident.
Detective Inspector Yoni Adler said: “Officers were on scene yesterday and the retail park area was closed off so they could carry out investigative duties.
“We have spoken to a number of people to establish what happened, but would like to speak to anyone who has information that could help us.
“Anyone in the area at the time that has dash cam footage is asked to check it to see if they have captured anything that may help the investigation.
“Officers will carry out reassurance patrols in the area today. If you have any information, approach them and tell us what you know.”
Anyone with information about the incident can submit it to Essex Police on their website here.
Alternatively you can contact them by calling 101.
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